Review The Structure of DNA

Review The Structure of DNA

By Rose Marsh

Multiple Choice

According to the Base Pair rule, Cytosine always pairs with

• Adenine

• Uracil

• Thymine

• Guanine

Multiple Choice

What is the significance of the sequence (order) of the Nitrogen Bases in DNA?

• The order of the Nitrogen Bases determines the number of chromosomes present in an organism.
• The order of the Nitrogen Bases determines the traits that an organism will possess (have).
• The order of the Nitrogen Bases determines the gender of an organism.
• The order of the Nitrogen Bases determines whether an organism is abiotic biotic.

Multiple Choice

The twisted ladder shape of DNA is known as a

• Double Helix

• Triple Helix

• Single Helix

• Double felix

Multiple Choice

How is the instructions for your traits carried on a DNA molecule?

• Sequence of the nitrogen bases

• In the Deoxyribose Sugar

• In the bond between the phosphate and the sugar

• In the phosphate group

Multiple Choice

The genetic material in cells is called......

• RNA
• Gene
• DNA
• Neuclotide

Multiple Choice

Adenine bonds with ______________.

• Guanine
• Thymine
• Cytosine
• Adenine

Multiple Choice

Which 2 molecules forms the sides (backbone) of the DNA ladder?

• ribose (sugar) and nitrogen bases
• ribose (sugar) and phosphate
• deoxyribose (sugar) and nitrogen bases
• deoxyribose (sugar) and phosphate

Multiple Choice

DNA codes for...

• bases
• proteins
• amino acids
• phosphates